I currently have a RS485 full-duplex bus system with slaves running at 230k4 baud.
I'm looking to connect my Siemens S7-315 2PN/DP with this bus system.
I think I should use the CP-341, but I figure there is no way to connect the 230k4 bus, so I should lower the complete bus's speed to 115k2.
Apart from that, the datasheet tells that RS422 uses 4 wires and RS485 uses 2 wires.
Which confuses me, since RS485 can be full duplex.
Also, some sources state that you'll need a ground connection between devices and some state you shouldn't?
Since it's differential, you wouldn't need a ground (reference) since the counter-signal acts like a reference?
I'm looking to connect my Siemens S7-315 2PN/DP with this bus system.
I think I should use the CP-341, but I figure there is no way to connect the 230k4 bus, so I should lower the complete bus's speed to 115k2.
Apart from that, the datasheet tells that RS422 uses 4 wires and RS485 uses 2 wires.
Which confuses me, since RS485 can be full duplex.
Also, some sources state that you'll need a ground connection between devices and some state you shouldn't?
Since it's differential, you wouldn't need a ground (reference) since the counter-signal acts like a reference?